@sillyMammothcheez #152831723

160

followers (as measured)

15 August 2016

account created (per Roblox API)

4 Sept 2026, 17:07

last measured (UTC)

Username record

@sillyMammothcheez — observed 4 September 2026

Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.

Groups owned (as measured)

The Vaults: Revived#10082565

Open data

Download this user’s observed record: username history (CSV) · record (JSON)

Also a member of

Chillz Studios#2782840 · 🌟Royal Member🌟

The Flamingo Fan Club#3336691 · December 5th we will all do something

Car Crushers Community#2726951 · Skilled Crusher

Abracadabra#997074 · Players

Roblox Rallying Group#6217280 · Member

Koala Association#937709 · Cashier

CRIMCORP#4165692 · Fan

Innovation Inc.#157764 · Member

Dunn Games#4035125 · Fan

The Nighthawk Imperium#1174414 · | T | Specialist

generic roleplay gaem fanclub.#5574524 · fan.

Badorkbee#3375285 · Follower

Quantum Science Inc.#2847031 · Corporate

[:] Nova Corporation#4965800 · Class - D

Maritime Roleplay Community#3297339 · (I) Roleplayer

Plasma Inc.#4192306 · Member

Foxtrot Asуlum Rolеplay#5555046 · Patient

Military Flight Simulator Community#1164372 · Fan

* Tearose Library *#4332211 · Reader

Innovation Security#901313 · [LR]In Training

ENLITE Theatre#3636682 · Technical Member

-= AEGIS International =-#2744682 · 〔T-2〕 Cadet

Chicago 1949#3246817 · Citizen

Space Sailors Community#8333210 · The Fanbase

Zeta Medical Corporation#5763193 · Community Fan

Thunder Scientific Corporation#11577231 · Test Subject

Plasma Security Division#5114770 · Trainee

Rocket Tester#3131361 · Alien Fan

The Eternal Engine#6626969 · 3rd Class Passenger

Alpha Expeditions#5981641 · Climber

Vault 61#5179520 · [2] Valued Dweller

Feline Expeditions#3235518 · Climber

The ‌Vaults#4210997 · [1] Recruit

Bloxtotzka#4984149 · Foreigner

Krystal Manifestations#4892541 · Fan

Hyperloop Transportation#1216593 · [OP] Operator

Starscape Announcements#3174300 · Member

Fallout: Vault 15#4742807 · 🫡 Veteran

The Grand Army Of The Republic || GAR#10494986 · O2 - First Lieutenant

The Cleetus Crime Family#6395147 · Family Member

UK | Armed Forces Quartermaster Store#4991937 · Customer

Red Velvet Mafia#5824802 · Associates

ZMC | SRP#10059432 · Facility Security

[RAF] Rοyal Αir Force#12422204 · Basic Training

Depressed Scooby-Doo Incorporated#5987103 · New Investigator | 2

《 The Brotherhood of Steel Outcasts 》#4128819 · Wastelander

- | Brotherhood of Steel | -#13674867 · Waiting

-DARKS GROUP-#6236850 · Member

[TV] Tunnel Snakes#7064052 · Grass Snakes

Vault 15 Veterans Association#33978437 · 📃 Previous Overseers

Vault Tech Legacy#13061836 · [10] Section Manager

Brothеrhood of Stееl#16493848 · Squire

Vault 15 Security#4742935 · Security Recruit

| For the Wastes |#6816464 · Minor Faction Member

[TV] The Yellow Party#6885996 · Party Leader

crackerreborn Cult#9467690 · Member

Vault 61 Security#6322334 · Overseer

The Vaults - Security Division#4291041 · Security Lieutenant

9

CAT GUILDS STAR FLEET#8884780 · security

8

GAR | Officer Academy#11288642 · Instructors

Membership and rank as measured from this user’s public group list.